Charge Into the Battle

When you choose the dash action you can make 1 melee attack with advantage against an opponent that you have successfully moved or knocked prone.

After moving at least 20 feet towards an opponent roll a contested athletics or acrobatics check. Of you're successful they are moved 5ft and knocked prone, if your opponent's check is successful they are moved 5ft. and not prone. Roll melee attack with advantage and +5 bonus to damage to a prone target. Roll melee attack with advantage and +5 to hit to a moved target. This attack is a free action.  

Increase either

Intelligence or Charisma

Dexterity or Constitution 

Strength or Wisdom